Sealing tag for bunghole closures



March 3, 1942. R. s. RHEEMv ET AL' 2,275,067

SEALING TAG FOR BUNGHOLE cLosUREs Filed June 28, 1937 INVENTORS Pfc/#veo5. HAE/vl Hoe/v ce c. WN

ATTORNEY.

Patented Mar. 3, 1942 f SEALING TAG FOR BUNGHOLE CLOSURES Richard S.Rheem, Orinda, Horace C. Brown, Berkeley, and Arthur J. Allen, Richmond,Calif., assignors, -by mesne assignments, to American Flange &Manufacturing Co., Inc.,

New York, N. Y., a corporation of Illinois Application June 28, 1937,Serial No. 150,788

(Cl. 22o- 39) 2 Claims.

The invention relates to a fitting which adapts a metal containerbung-opening for closure with a threaded plug, and relates moreparticularly to a means associated with the fitting and to which theplug may be tied or otherwise secured to prevent unauthorized orundetectable tampering with or removal of the plug or other closure.

An object of the invention is to provide a sealing means of thecharacter described which may be effectively and at Very small cost,incorporated as a. fixed part of one of the fitting members so as toavoid the necessity for separately handling the means during theapplication of the fitting members Iand the assembly of the mem-bers onthe container.

Another object of the invention is to provide a sealing means las aboveset forth, which while formed as a separate part of the vassociatediltting member and arranged to be secured thereto after f the member hasbeen completely fabricatedJ will require no change in the originaldesign of the member and make necessary the fabrication or assembly ofthe fitting differently when Vthe sealing means is omitted.

A further object of the invention is to provide a sealing meansembodying a sealing tag or clip which is formed separately of theassociated litting member, but may be :attached to the member withoutthe aid of any extraneous fastening means.

The invention possesses other objects Iand features of advantage, someof which, with the foregoing, will be set forth in the followingdescription of the preferred form of the invention which is illustratedin the drawing accompanying and forming part of the specication. It isto be understood, however, that variations in the showing made by thesaid drawing and description may be adopted within the scope of theinvention as set forth in the claims.

Referring to said drawing:

Figure 1 is a longitudinal section View through a bung hole fitting andclosure with the sealing means of our invention in use.

Figure 2 is la perspective view of the sealing tag and associatedfitting member.

Figure 3 is an enlarged fragmentary plan view of the sealing tag andfitting member, parts being shown in section.

Figure 4 is a view similar to Figure 3, but with the tag omitted.

Figure 5 is Ia plan View of the sealing tag.

The sealing means of our invention as shown in Figure 1, is embodied ina fitting 6 which is 55 applied to a bung opening I in a wall 8 of ametal container. In the form of ntting illustrated, there is provided aninternally threaded bushing 9 which extends through the opening I andhas provided therein a laterally extending flange II which abuts againstthe outer side of the wall 8. At the inner side of the wall, the fittingis provided with a backing member I 2 having a lateral flange I3 betweenwhich and the flange II the wall portion surrounding the opening isclamped, the parts being retained in clamped position by means of a beador roll I4' on the bushing, which is flanged over the inner edge of thesleeve portion i5 of the member I2 which encircles and embraces thebushing 9. Relative rotational dis-- placement of the bushing 4andbacking member with respect to each other and to the container wall, isprevented by means of projections I 'I formed in the flange II, whichseat in offsets I8 formed in the wall and which in turn seat indepressions I9 in the flange I3 of the backing member.

Closure of the opening 2l through the bushing Sis effected by means ofan externally threaded plug 22 preferably having a head or shoulder 23arranged to seat upon the flange 9. To prevent unauthorized removal ofthe plug from the fitting, the plug is arranged to be anchored to thefitting so as to prevent the rotation of the plug in the threadedbushing, and usually the anchoring is effected by wiring some perforatedprotuberances of the plug to a similar portion formed on or attached toa part of the fitting or container Wall. As here shown, the plug isformed with one or more perforated bosses 26 to which the wire may besecured. A relatively soft fusible metal wafer, such as indicated at 27,is ordinarily used to connect portions of the anchoring wire to effect adesired sealing of the connection.

In the present embodiment of the invention the anchoring means for theattachment of the sealing wire to the fitting, is directly associatedwith the bushing member 9 and more specifically the flange II thereof.The means aforesaid comprises a tag or clip 28 preferably formed ofsheet metal of a thickness desirably less than the flange and elongatedand positioned to extend radially outward from the flange.

The manner of connecting the tag to the flange and the form andcooperation of the contiguous portions of the tag and flange involve avery important part of the present invention. As may be most clear fromFigures 2 and 3, there is provided in the peripheral edge of the flangeIl a recess 3l which extends for the full thickness of the flange andwhose width corresponds generally to the width of the tag but Whosedepth is appreciably greater than the thickness of the tag. The tag, aswill be understood, is arranged to be held in the recess, and theportion of the tag directly inserted within the recess is disposed atthe base of the recess in angular relation with remainder of the tag andso that the flat sides of the tag will extend generally concentricallyof the bushing. Preferably, the surfaces 32 and 33 defining the sides ofthe recess are constricted toward the outer end of the recess so thatthe tag which is disposed at the inner end of the recess is at all timessubstantially confined therein. It is important to note that in thenormal fabrication of the bushing member the latter is completely formedbefore the recess is cut therein. This is done since the same form ofbushing is used where no sealing means is desired and thus the necessityfor making a special design to accommodate the sealing means is avoided.In the present instance since practically the only change required inthe bushing to adapt it for the accommodation of the tag, is theformation of the dovetail shape recess, which formative operation may bereadily effected by a punching operation directed longitudinally of thebushing, this feature is effectively taken care of.

The sides 32 and 33 desirably converge to form an included angle ofvapproximately thirty degrees, and where, as here, the converging sidesare provided, the tag will be ordinarily inserted into the recess at aside wall of the flange, and

in the preferred method of applying the tag the latterA is inserted intothe opening before the different parts of the tag are bent in angularrelation. When the tag has been inserted into the recess, in order tolock the tag in the latter the portions of the iiange dening the sides32 and 33 are forced inwardly by a suitable tool so as to thus firmly xthe tag against radial displacement, it being noted that owing to theconverging sides of the recess the side portions will lend themselves tobe more readily de pressed against the tag and also by a direct inwardradial force. As will be clear from Figure 5, the portion of the tagarranged to t in the recess is provided at opposite edges thereof l,

with notches 38 and 3i, and thus it will be evident that when the sidesof the recess are pressed inwardly against the tag, portions of thebushing metal will be forced into the notches and thus securely hold thetag into the recess against displacement longitudinally of the bushing.It will thus be clear that the tag will be rigidly secured in positionand effectively held against displacement in every direction. It is alsoimportant to note, that notwithstanding the rigid connection of the tagwith the bushing, the attachment has been effected without in any waymutilating or interfering with any portion of the bushing except at theimmediate peripheral edge thereof, and since the recess is confined tosuch edge, there Will be no interference with the functionalrelationship and cooperation of any of the fitting parts with eachother. In this latter connection, it will be noted that the recess andtag are located in a safe position between the protuberances of thebushing ange, and at a point outwardly of the space occupied by thesealing washer 4l between the flange ll and the container wall.

As will be clear from Figure 1, in the form of the container shown,there is provided an embossment in the container wall, which surroundsthe bushing flange Il. In keeping with this, the outwardly extendingportion of the tag is arranged to project from the flange at the outerside 43 thereof, thus permitting the tag to readily clear the bead.

We claim:

1. In structure of the character described, the combination of a bunghole ange for a metal container, said flange being provided with arecess extending inwardly from the outer periphery thereof, with a sealanchoring tag, said tag having a portion with a notched edge seated insaid recess and a portion remote therefrom provided with a sealing wirereceiving eyelet, the portions of said bung hole flange defining thesides of said recess being swaged over and against said notched edge ofsaid tag and partly over the outer face of the same with some of thematerial of said portions lling the notch and forming a lockingengagement between said tag and the side wall of said recess, wherebysaid tag is located against movement in any direction.

2. In a closure receiving bushing for application by pressing to acontainer wall defining an opening therein, a laterally extending flangeon said bushing designed to overlie the container wall stock around theopening therein to secure a gasket in place against such stock, means onsaid bushing to form a non-rotatable engagement with said container wallstock to prevent rotation of the bushing, said flange being recessed ata position spaced from said gasket seat and from the means preventingrotation and a sealing tag having a securing end and a sealing wirereceiving end, said securing end being formed for reception in saidrecess, the stock of the side Walls of said recess being swaged over andagainst the securing end of said sealing tag to secure the same in therecess and the portion of said sealing tag continuing from said securedportion extending directly away from the confines of the flange, wherebysaid bushing with said sealing tag already secured thereto may bepressed in place in said container wall opening without interferencebetween said sealing tag and the pressing mechanism employed.

RICHARD S. RHEEM. HORACE C. BROWN. ARTHUR J. ALLEN.

